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(No Model.) n M. BARBERE J, P, ASHBYI2 Sheets sneenl SASH BALANCE. N0. 605,215. Patented June 7,1898.

FE ET. 3

2 Sheets-Sheet 2.

(No Model.)

M. BARBER 8v J. P. ASHBY.

SASH BALANCE.

No. 605,215. Patented June 7,1898.

UNITED STATES PATENT OFFICE.

MELVIN BARBER AND` JOHN P. ASHBY, OF OKLAHOMA, OKLAHOMA TER- nIToRY, AssIeNoEs PLAGE. u

OF ONE-THIRD TO JOSEPH B. ROLATOR, OF SAME sAsjH-BALANCE.

srnorrlcnrronlfgiaing Sartor Leiters Patent No. 605,215,1dated Janet', 189s.

. Application filed Novemberu, 1897. Serial No. 657,685.V (No model.) 4

To all whom it may concern: l

Be it known that we, MELvIN BARBER and JOHN P. AsHBY, citizens of the United States,

Aresiding at Oklahoma, in the county of Oklahoma and Territory of Oklahoma, have invented a new and useful Sash-Balance, of which the following is a specification.

Our invention relatesA to improvements in sash-balances; and the object that we have in view is to provide an improved construction by which sashes of unequal weights may be balanced without resorting to the employment of independent weights for the sashes, thus dispensing with the `use of the usual weight-boxes and materially simplifying the construction of the sash-balance.

Afurther object of the invention is to provide an improved construction which may be adjusted to accommodate sashes of dierent head over the sashes, and a single continu.

weights and which may also beapplied with ease and facility. u

To the accomplishment of these ends our invention consists in the combination, with a frame or casing and an upper sash, of a lower sash having guide devices, a rotatable double spring-controlled drum mounted on the head of said casing, guide-sheaves on the framev ous running cord coiled on the sections of the Figure 1 is a perspective view,partly broken away and in section, of a spring sash-balance constructed in accordance with our invention. Fig.- 2 is `a top plan view of the win-v dow-casing with our improved sash-balancing mechanism applied to and within the head thereof. Fig. 3 is a vertical transverse sectional view on the plane indicated by the dotted line 3 3 of Fig.' 2. Fig. et is an enlarged detail sectional view through the spring-concontrolled drum and the tension-adj Listing device for the spring. Fig. l5l is a detail perspective view of the pulley-.support for one of the two pairs of guide-pulleys employed in `connection with our improved sash-balance.

Like numerals of reference denote corresponmdin g parts in all the figures of the drawings. t

1 designates the casing of an ordinary window, provided with al hollow or chambered head 2. 3 is the upper sash, andA. is the lower sash. These sashes are guided within the casing or frame'l by the usual beads or strips, and the upper sashB is provided with short grooves 3a, while the lower sash is provided with the `recesses 5, in which are set the guide-pulleys 6 Ga to accommodate the running sash-cord presently described.

7 designates the drum or cylinder, which is arranged in a horizontal position transversely across the central part of the chambered or hollow head 2, and this drum or cylinder is provided with a transverse opening S and with a central spiral guide-flange 9. lf desired, the drum may be provided at its ends with radial annularfianges 4to prevent the sash-cord from running off the ends of the drum or cylinder. This drum 7 has a central shaft 10, the ,rear end ofwhich is journaled in a suitable bearing'11, fixed in the rear side or chamber of the head 2, if desired.'V The front protruding end of this winding shaft or arbor is made angular or-of other polygonal form to receive an angular nut or key 15, which is adaptedto be fitted to the angular end 14 of the shaft, and said nut or key 15 may be ceives the front end of the drum-shaft 10 tov form a journal and support for the front end of the drum-shaft,and around this drum-shaft is itted the coi-led tension-spring 16 to confine the spring properly in position. end of this helical spring is fastened to the` drum or cylinder 7 in any suitable way, while the other end of the spring is'fastened to the inner end of the tubular or socketedwindingshaft 13. This tubular shaft may be rotated by the nut or key in order toplace the spring under tension, and thus operate tov controlthe 17 and apawl 18. As shown, the ratchet and pawl are arranged on the front exposed side of the head 2 of the window-casing; but it is evident that these parts may be placed or arranged inside of the head 2., so as to be concealed from View. The ratchet is fastened in a suitable way to the short tubular winding-shaft, while the pawl is attached to theV casing-head 2 either by a pivot and held by spring-pawl may be used. y

On opposite sides of the centrally-disposed spring-controlled drum 7 and in vertical aline-4 ment with the sashes 3 4 we providethe pulley-supports 19 20. Each pulley-support isl a single casting of angular form, as shown by members arranged at right angles to each` other and the perforated earsor lugs, through which may be passed suitable screws to fasten the pulley bracket or support to the casing-head`. The pulley-bracket 1'9 at the left.-

hand side ofthe casing carries two guide pulleys 21 22, which are journaled therein to have their arbors or journals lie at right angles to each other, while the other pulley bracket 20 at the right-hand side of the casf ing carries two pulleys 23 24, which in like manner are journaled in the bracket 2O te have their arbors lie at right angles to each other. The pulleys 21 23 of the brackets are arranged over and in vertical line with the upper sash 3, while the other pulleys 23 24 are over and in vertical line with the lower sash 4.

25 designates the single continuous running sash-cord which is common to both sashes to be operatively connected therewith. and with the centrally-disposed winding-drum 7. One end of this sash-cord is attached to the upper recessed corner of the upper sash 3, as at the point 26, thence the cord runs up over, the pulley 2l, thence down to and around one pulley 6 in the'upper corner of the lower sash 4, thence up to and around. the pulley 22, thence over to and around the drum 7, on one side of the spiral flange 9 thereof, thence through the opening 8 inthe drum and coiled around the drum on the opposite side of the flange 9, thence the cord runs over the pulley 24, down to and around the other sheave l6 in the other corner of the lower sash 4, fthence 'up'and aroundv the sheave' 22, and, liinally, it is carried down and attached to the upper recessed corner of the upper sash 23,

.where it is fastened, as at the point 27. OneA .thatwe employ a single cord which is fastened at its respective ends to the corners of 'the upper'sash, that it is slidably connected .to the-corners of the lower sash, and that it .is coiled on the centrally-disposed drum to Fromthis description it will be observed rotate the latter when one or the. other of the isashes are raised or lowered. drum or cylinder 7, andthe spring is prevente ed from uncoiling by the provision of a ratchetI The described arrangement of the sashscord While we have shown and described our j improved sash-balanceas appliedtothehead 2 of the window-casing, we do not strictly Elimit ourselves to, this particular arrange- Alyrnent'of the: parts, because we are aware that lvthe balance may be arranged on the sashes themselves.

Fig. 5, and this casting comprises the two i In the drawings we have shown the lower "sash equipped with a lock 30, consisting of a slidable platev arranged to bind against the casing and to be controlled by anr eccentric ythumb-piece; but this form of the lock is im- ,Qm-aterial, and other styles of locks may be us'ed, if desired.`

Various changes in the form and proportion of,v parts may be made without-departing from the spirit of our invention. Y

Having4 thus fully described our inven-tion, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination with a frame or casing, and an upper sash, of a lower sash having the guide devices,a rotatable, double, springcontrolled drum mounted on the head ofsaid easing,guide-sheaves on the frame-head overl `the sashes, and a single continuous running and the'y employment of the spring-controlled v drumfprovide a simplel con-trivance by which 'the tension of the: spring which controls the drum is utilized as the means for counter- 4:balancing the weight of the sashes, and the :employment of the winding-shaft in connection: withA the spring and the drum iny the manner described enables the spring to be put l under more or less tension in accordance with the difference in the weight of the sashes.

a spring in engagement with the ratchet or a the tubular shaft may be rotated, a coiled spring fitted on the drumfshaft andattached as our` own We have heretoaffixed our signa, at its ends to the tubular shaft andthe drum Vtures in the presence of two witnesses.

respectively, and a detent device connected MELVIN BARBER. with said Winding-shaft to restrain the latter i JOHN P. ASHBY.

5 from rotation under the recoil ofthe spring, Witnesses:

substantially as described, AMOS BOUSE,

In testimony that We claim the foregoing AGEORGIE, E. WILSON. 

